Effect of Extrusion Route on Grain Refinement during ECAP Process
The effect of the extrusion route (A,C and Bc) on grain refinement during ECAP process in 99.9995% (5N5) high pure aluminum using a die with a channel-intersection angle 90° was investigated.It was found through experiment that,the grain was very coarse in the cast ingot of5N5 high pure aluminum,and the average grain size is about 50~60mm.After two ECAP passes,the average grain size is 300μm,550μm and 200μm respectively with the extrusion route of Route A,C and Bc.After eight ECAP passes,the average grain size is 100μm,100μm and 30μm respectively with the extrusion route of Route A,C and Bc.It indicates that the route Bc is more effective than Route A and C.TEM micrograph of 5N5 high pure Al with different ECAP pass under Route Bc was studied.
ECAP High pure aluminium Extrusion route Grain refinement
Chunyan Ban Haitao Gao Chuanqiang li Dong Han Jianzhong Cui
Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials,Northeastern University,Shenyang 110004,Liaoning,China
国际会议
西安
英文
672-675
2013-07-27（万方平台首次上网日期，不代表论文的发表时间）